Under the rail-trail bridge the Quinapoxet runs fast and cold even in a heat wave, and the shade along it stays green all summer long. McCarthy's Landscaping & Irrigation Inc. looks after lawns through that same stretch of West Boylston, mowing and trimming one week to the next, keeping edges cut and beds mulched. Spring starts with a big rake-out — sand, sticks and everything winter left along the verges — and autumn ends with the leaves off the grass before the first hard freeze. A lawn that gets consistent attention looks like it, and that is the whole point; it reads from the sidewalk. Grass season is short in central Massachusetts, so none of it gets wasted.